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package cn.net.greenet.device.servlet;

import cn.net.greenet.db.HibernateUtil;
import cn.net.greenet.db.bean.Policyrepositoryinstance;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

/**
 * 获取每类策略策略库信息
 *
 * @author LiuShang
 */
@WebServlet(name = "cn.net.greenet.device.servlet.ListAllPolicyRepositoryInstances", urlPatterns = {"/device/information/get_strategy"})
public class ListAllPolicyRepositoryInstances extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        SessionFactory sf = HibernateUtil.getSessionFactory();
        Session session = sf.openSession();
        try {
            List l = session.createQuery("From Policyrepositoryinstance").list();
            JSONArray rst = new JSONArray();
            Policyrepositoryinstance tmp = null;
            for (int i = 0; i < l.size(); i++) {
                tmp = (Policyrepositoryinstance) l.get(i);
                JSONObject obj = new JSONObject();
                obj.put("strategy_id", tmp.getId());
                obj.put("Message_Type", tmp.getPolicyrepositorytype().getMessageType());
                obj.put("strategy_name", tmp.getInstanceName());
                rst.add(obj);
            }
            try {
                /* TODO output your page here. You may use following sample code. */
                out.println(rst);
            } catch (Exception e) {
                out.println("[]");
            }

        } catch (Exception e) {
            out.println("[]");
        } finally {
            out.close();
            session.close();
        }

//        try (PrintWriter out = response.getWriter()) {
//           IDeviceManagement iDeviceManagement = new DeviceManagementImpl();
//           out.println(iDeviceManagement.getEveryPolicyBank());
//        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
